(More game types: Y games, Pony games, 1 Player, Action, Asteroids, Defend, Defense, Flash, Moon, Mouse Skill, Planet, Purchase Equipment Upgrades, Space, Y3)
|Description of Earth Defense game:
Control the moon to defend the Earth from incoming Asteroids, Satellites, and other Space Junk. Buy upgrades between waves to help you survive.
Use mouse to move. See also In-game instructions.
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